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BULLETIN TROPICAL STORM IVO
INTERMEDIATE ADVISORY NUMBER 4A 
NATIONAL WEATHER SERVICE MIAMI FL 
11 AM PDT TUE SEP 11 2001

...IVO MOVING A LITTLE FASTER...HEAVY RAINS AND BATTERING WAVES
ALONG THE SOUTHWEST MEXICAN COAST...

A TROPICAL STORM WARNING IS IN EFFECT FOR THE PACIFIC COAST OF 
MEXICO FROM LAZARO CARDENAS TO CABO CORRIENTES.
 
AT 11 AM PDT...1800Z...THE CENTER OF TROPICAL STORM IVO WAS 
ESTIMATED NEAR LATITUDE 17.3 NORTH...LONGITUDE 105.5 WEST OR ABOUT 
140 MILES...230 KM...SOUTH-SOUTHWEST OF MANZANILLO MEXICO.

IVO IS NOW MOVING TOWARD THE WEST-NORTHWEST NEAR 15 MPH...24 
KM/HR...AND THIS MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24 
HOURS.

MAXIMUM SUSTAINED WINDS ARE NEAR 40 MPH... 65 KM/HR...WITH HIGHER
GUSTS.  SOME STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS.
 
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES
...280 KM FROM THE CENTER.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS 1000 MB...29.53 INCHES.

HEAVY RAINS ARE EXPECTED OVER PORTIONS OF THE WARNING AREA...AND 
THERE IS A RISK OF FLASH FLOODS AND MUD SLIDES IN MOUNTAINOUS AREAS.
 
REPEATING THE 11 AM PDT POSITION...17.3 N...105.5 W.  MOVEMENT
TOWARD...WEST NORTHWEST NEAR 13 MPH.  MAXIMUM SUSTAINED WINDS...40
MPH.  MINIMUM CENTRAL PRESSURE...1000 MB.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE.
 
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
2 PM PDT.

FORECASTER AVILA
 
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